<template>
  <div class="wrapper">
    <div
        style="margin: 200px auto; background-color: #fff; width: 370px; height: 310px; padding: 20px; border-radius: 10px">
      <div style="margin: 20px 0;text-align: center; font-size: 24px"><b>登 录</b></div>
      <!--      表单验证-->
      <el-form :model="user" :rules="rules" ref="userForm">
        <el-form-item prop="username">
          <el-input placeholder="请输入用户名" size="medium" prefix-icon="el-icon-user"
                    v-model="user.username"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input placeholder="请输入密码" size="medium" prefix-icon="el-icon-lock" show-password
                    v-model="user.password"></el-input>
        </el-form-item>
        <el-form-item prop="captcha">
          <div style="display: flex;">
            <el-input style="width: 220px;" placeholder="请输入验证码" size="medium" prefix-icon="el-icon-lock"
                      v-model="user.captcha"></el-input>
            <img :src="captureUrl" @click="getCapture" style="width: 130px;height: 35px;margin-left: 10px"/>
          </div>
        </el-form-item>
        <el-form-item style="margin: 10px 0; text-align: right">
          <el-button type="primary" size="small" autocomplete="off" @click="login">登录</el-button>
          <el-button type="warning" size="small" autocomplete="off" @click="$router.push('/register')">注册</el-button>
        </el-form-item>
      </el-form>

    </div>
  </div>
</template>

<script>

export default {
  name: "Login",
  data() {
    return {
      user: {},
      //验证码
      captchaKey: '',
      captureUrl: '',

      rules: {
        username: [
          {required: true, message: '请输入用户名', trigger: 'blur'},
          {min: 2, max: 10, message: '长度在 2 到 5 个字符', trigger: 'blur'}
        ],
        password: [
          {required: true, message: '请输入密码', trigger: 'blur'},
          {min: 1, max: 20, message: '长度在 1 到 20 个字符', trigger: 'blur'}
        ],
        captcha: [
          {required: true, message: '请输入验证码', trigger: 'blur'},
        ]
      }
    }
  },
  created() {
    this.captchaKey = Math.random();
    this.captureUrl = "http://localhost:8090/capture/chars?key=" + this.captchaKey;
  },
  methods: {  login() {
      this.$refs['userForm'].validate((valid) => {
            if (valid) {  // 表单校验合法
              this.request.post("/user/login?key=" + this.captchaKey, this.user).then(res => {
                    // console.log(res)
                    if (res.code == 200) {
                      this.$router.push("/")
                      this.$message.success("登陆成功")
                      // 将数据存到浏览器中
                      localStorage.setItem("user", JSON.stringify(res.data))
                      localStorage.setItem("menuList", JSON.stringify(res.data.menuList))
                    } else {
                      this.$message.error(res.msg)
                      this.captchaKey = Math.random();
                      this.captureUrl = "http://localhost:8090/capture/chars?key=" + this.captchaKey;
                      this.user.captcha = ''
                    }
                  }
              )
            }
          }
      );
    },
    //点击图片,刷新验证码
    getCapture() {
      this.captchaKey = Math.random();
      this.captureUrl = "http://localhost:8090/capture/chars?key=" + this.captchaKey;
    }
  }
}
</script>

<style scoped>
.wrapper {
  height: 100vh;
  background-image: url("@/assets/111.jpg");
  background-size: cover;
  overflow: hidden;
}
</style>
